Privacy

Diffs stay on your device. CheckDiffs compares text and code in your browser with the Monaco Diff Editor (client-side). We do not upload, store, or transmit the content you paste into the editor for basic side-by-side compare.

Verify it yourself. Open your browser DevTools → Network, paste sample text into both panes, and confirm that your diff content is not posted to our servers. You may still see requests for the app shell, Monaco assets, or analytics — those do not carry your pasted text.

Analytics. We use Google Analytics with measurement ID G-NSL411N2NF to understand aggregate traffic (page views, approximate location, device type). Analytics does not receive your diff content.

No accounts yet. Basic side-by-side compare does not require a login and stays free forever. Planned Pro features (export, ads-free experience, AI summary quota, share links, history, large-file support) are TBD — there is no fake checkout today. When Pro ships, we will update this page with how that data is handled.

Who runs this. CheckDiffs is an independent project by FT. More context on About.

Questions: checkdiffs.com.